!7

static int g = 20;

p {

  final RGBImage img = rgbShootScreen();

  final int gw = img.w()/g, gh = img.h()/g;

  final BWImage map = new BWImage(gw, gh);

  for y to gh: for x to gw: {

    Rect r = new Rect(x*g, y*g, g, g);

    float prec = rgbLocalPrecision(img, r);

    print(prec);

    map.setPixel(x, y, 1-prec);

  }

  awt {

    showZoomedImage(map, 4);

    final RGBImage img2 = rgbResize(img, gw, gh);

    moveFrameDown(100, showZoomedImage(img2, 4);

  }

}